Webasto Air Top EVO 40 12V Diesel heater kit with Rheostat control
Webasto Air Top EVO 40 12V Diesel heater kit with Rheostat control
Webasto Air Top EVO 40 12V Diesel heater tech.specs
Webasto Air Top EVO 40 12V Diesel heater dimentions
Webasto Rheostat control
Webasto Air Top EVO 40 12V Diesel installation kit

Webasto

Webasto Air Top EVO 40 Diesel 12V Heater Kit with Rheostat Controller

In Stock (3 reviews)
$1,987.00
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Availability:

In stock and ready to ship from our Costa Mesa, CA warehouse.

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Calculated at Checkout Most in-stock orders ship from our Costa Mesa, CA warehouse the same or next business day. Shipping options and taxes are calculated at checkout. View Shipping Details

Warranty:

Products include manufacturer-backed warranty coverage. Terms vary by product and brand. View Warranty Details

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Eligible unused items in their original packaging may be returned within 14 days of delivery. Terms and fees may apply. View Return Policy

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Core Features & Benefits

High-output diesel air heater for bigger rigs and cold climates

Warm large cabins fast with quiet, efficient heat - perfect for van builds, RVs, and evo sleeper truck cabs. The Air Top EVO 40 delivers up to 13,650 BTU (4 kW) with simple, glove-friendly Rheostat control and easy service using genuine Webasto heater parts.

Benefits & Use Cases - EVO 40

Cut idling, save fuel, and keep crews comfortable with dependable diesel air heat. The EVO 40 balances strong output with low noise so you can sleep, drive, or work in comfort.

  • Strong 13,650 BTU heating for mid-to-large interiors and rapid warm-ups.
  • Rheostat dial for quick, intuitive temperature adjustment.
  • Engine-off operation reduces fuel costs and wear.
  • High-altitude capability up to 18,000 ft (5,500 m) for mountain travel.

Technical Specifications

  • Fuel: Diesel
  • Voltage: 12V
  • Heat output: 4 kW (≈ 13,650 BTU)
  • Fuel consumption: 0.26–0.56 L/h (≈ 0.04–0.12 gal/h)
  • Rated power draw: 15–40 W (boost ~55 W)
  • Max operating altitude: 5,500 m (≈ 18,000 ft)
  • Heater body dimensions: 423 × 162 × 148 mm (≈ 16.7 × 6.4 × 5.8 in)
  • Part numbers: 5011170 / 5011170B
  • Certifications: ECE-R10 (EMC), ECE-R122 (heater)
  • Warranty: 2 years

Browse Webasto Manuals & Technical Documentation

Vehicle Compatibility

  • Conversion Van
  • Light Medium Duty
  • Motorized RV
  • Coach / Transit Bus
  • Commercial Truck (incl. sleeper cabs)
  • Cargo
  • Off-Highway
  • Municipality
  • Ground Support Equipment
  • Emergency & Specialty Vehicle

Kit Includes

  • Webasto Evo 40 12V Diesel Heater Unit
  • Electrical harnesses and connections (4.3 m / 14ft)
  • Rheostat Controller
  • Fuel Pump DP42 and fuel line (4m / 14ft)
  • Fuel filter and mounting accesories
  • Fuel Standpipe
  • Mounting Plate with gasket and base seal
  • Flexible Stainless Steel Exhaust hose with accessories (1.2m / 3.9ft)
  • Combustion Air intake tube
  • Flexible hot air ducting - 90mm (1m and .5m pieces)
  • Flexibe hot air ducting - 60mm (1m)
  • Air Inlet grille
  • 360 degree rotating hot air vent and ducting connector
  • Operation/Installation Manual
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